REAIR RA1824 18x24x1 Washable MERV 8 HVAC Air Filter

Some households prefer a filter they can replace and discard, others want one they can wash and reuse. The REAIR RA1824 is designed for the reusable routine, with an 18 x 24 x 1-inch profile and MERV 8 filtration. Its pleated polyester media is made for everyday use in compatible HVAC systems.

Specifications

• Type: Washable, reusable HVAC air filter
• Size: 18 x 24 x 1 inches
• MERV rating: 8
• Material: Polyester
• Construction: Pleated, rectangular
• Mounting: Snap-in
• Compatible systems: Air cleaners, air conditioners, furnaces, HVAC systems, and heat pumps

MERV 8 filtration is intended to capture common airborne particles such as dust, pollen, and pet dander. The manufacturer reports capture of 3–10-micron particles under standard operating conditions. For households that want routine particle filtration without changing a disposable filter each time, the reusable design offers a different approach to ongoing HVAC care. Match the filter dimensions to the system’s required size before installation.

Usage tips

The filter is machine washable and dryer-friendly. It can also be air-dried, let it dry before putting it back into the system. The manufacturer suggests cleaning every 30–60 days, adjusting the schedule as needed for household dust, pets, seasonal pollen, and HVAC use. Regular cleaning makes the washable format practical as part of a recurring home-maintenance routine.

The snap-in mounting is designed to make installation straightforward, and the filter is intended for compatible residential HVAC applications. It has also been tested to ASHRAE 52.2 standards, the listed pressure drop is 0.38 inches w.g. at 1,367 CFM and 0.54 inches w.g. at 1,750 CFM. These details help homeowners compare filtration and airflow considerations when choosing a replacement filter for their system.

Customer feedback often highlights easy assembly and installation, simple cleaning, and a good fit. Opinions are mixed on dust-catching performance, and some buyers report issues with the plastic frame’s durability. That feedback can help set expectations when weighing a reusable filter against a routine of disposable replacements.

What’s included

The package includes one washable filter and one frame. The frame provides the snap-in mounting for installation. The filter’s 18 x 24 x 1-inch dimensions are the key fit detail when selecting it for an air conditioner, furnace, heat pump, or other compatible system.

Is it worth it?

It makes sense if you want to reduce reliance on throwaway filters and are comfortable adding periodic washing to your HVAC maintenance routine. MERV 8 filtration, a washable polyester design, and snap-in mounting bring together the core benefits for ongoing household use. For a system that takes an 18 x 24 x 1-inch filter, the REAIR RA1824 offers a reusable option for managing everyday airborne particles while keeping the replacement routine centered on cleaning rather than discarding.